We had a 16" auger available so that's what I used. The main reason I had it engineered was I wanted a 17' span between posts. (required a triple 2x12 Girder) Roof size is 22x22 with 4 posts.
Plus I have a good relationship through work so he did it for a minimal fee.
Top of the post above grade is 10' 6" at the highest point. Depth probably has some formula but I don't remember.
I don't see your posts coming out of the concrete.
Plus I have a good relationship through work so he did it for a minimal fee.
Top of the post above grade is 10' 6" at the highest point. Depth probably has some formula but I don't remember.
I don't see your posts coming out of the concrete.